Jeep HEI for Hemi 6, possibly slant 6 (and GM Holden 6)

Dave,
One more thing to happy Weber life. 4 psi fuel pressure max.

Valman,
Weber progression holes varied depending on the model. The 48 IDF s had four holes. The 48 IDA only has two holes, which is why they are not good street carbs. There were many iterations of the DCO[E] series.